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Content
Safety Instructions................................................................................................................ 1
Notes......................................................................................................................................... 1
1. Storage............................................................................................................................. 1
2. Use................................................................................................................................... 1
Overview .................................................................................................................................. 2
I. Structure............................................................................................................................... 3
1.1 Appearance .................................................................................................................... 3
1.2 Keys............................................................................................................................... 4
1.3 Power.......................................................................................................................... 6
1.3.1 Battery ................................................................................................................. 6
1.3.2 Power Adapter ..................................................................................................... 7
II. Screen Description .............................................................................................................. 8
2.1 Display layout ............................................................................................................... 8
2.2 Detailed interpretation of the screen ............................................................................. 8
2.2.1 “Measurement” menu.......................................................................................... 8
2.2.2 “Record” menu.................................................................................................... 9
2.2.3 “Mode” menu .................................................................................................... 10
2.2.4 “Setting” menu .................................................................................................. 11
III. Operating Instructions .................................................................................................... 12
3.1 Startup ......................................................................................................................... 12
3.2 Color difference measurement .................................................................................... 12
3.2.1 Measurement: Sample measurement................................................................. 12
3.2.2 Measurement: Sample measurement................................................................. 13
3.3 Record ......................................................................................................................... 13
3.3.1 Record: Sample record ...................................................................................... 14
3.3.2 Record: Specimen Record................................................................................. 14
3.4 Mode............................................................................................................................ 15
3.4.1 Mode: Measurement mode................................................................................ 15
3.4.2 Mode: Light source selection ............................................................................ 17
3.4.3 Mode: Color difference formula........................................................................ 19
3.5 Setting.......................................................................................................................... 20
3.5.1 Setting: Black and white calibration ................................................................. 20
3.5.2 Setting: Printing and saving .............................................................................. 21
3.5.3 Setting: System setting ...................................................................................... 21
Ⅳ.Product standard.............................................................................................................. 23
WF32 User Manual
Safety Instructions
In order for safe and proper use of the instrument, please read carefully and
follow the instructions of the manual.
Use only original power adapter and original battery to avoid fault or damage of
the instrument.
Upon long time no use, cut off external power and remove the battery to avoid
damage to the instrument resulting from battery fluid overflow.
Do not use the instrument under the conditions with flammable and explosive
gases, dusts or smokes to avoid accident.
Do not use the instrument under the conditions of strong magnetic field, rattling,
dust and smoke to avoid unexpected data and performance failure.
The product is a precision instrument, do not disassemble it without permission, or
it may be damaged and unrepairable.
Notes
1. Storage
● Upon long time no use, put the instrument into a packing box;
● Store the instrument in a cool and dry environment with a temperature at
-10°C~50°C and relative humidity under 85%;
2. Use
● When using the instrument, the ambient temperature should be 0°C~40°C, relative
humidity at 85%, without condensation;
● Do not use the instrument under the conditions of strong magnetic field, rattling,
dust and smoke to avoid unexpected data and performance failure.
● Prevent foreign objects as liquid, powder or solid etc. from entering into the
instrument to avoid unexpected measurement data.
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WF32 User Manual
Overview
The Colorimeter is a professional colorimeter designed and produced subject to
the relevant standards of International Commission on Illumination (CIE) and national
stands.
Being with brand new imported key components, the instrument is well
designed and features in precision, stability, easy handling, easy to learn and
cost-effective.
The instrument applies to the color quality control, color difference control, color
difference analysis, sampling testing and online testing for industries as textile,
printing and dyeing, garments, shoes, leather, chemical, plastic, pigment, paint, ink,
printing, metal, photography and toys etc., as well as to the auxiliary color matching
during the processes as injection, inking, painting and spraying coating etc.
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I. Structure
1.1 Appearance
Figure 1.
Instrument Appearance
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1.2 Keys
4. Saving
1. Up
6.Show
5. Confirm
2. Down
3. Paging
Figure 2. Bird's View
Up
-
move the position of the cursor in the screen; adjust the value of the
activated items .
Down
-
move the position of the cursor in the screen; adjust the value of the
activated items.
Paging
-
Switching between tabs.
Saving
-
Save settings.
Confirm
-
Confirm or activate selected items in the screen (a blue background of
the item will be changed to a green background after activation); fast
switching
between
"standard
measurement"
and
"sample
measurement".
Show screen
-
show measurement result etc.
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8. Measurement
9. Measurement port
Figure 3. Back View
Measurement - Measuring
Measurement port - Optical channel for measuring.
11. Printing interface
13. DC connector
10. Switch
12. Battery cover
Figure 4. Right View
Switch
-
Printing interface
-
Battery cover
-
In (I) or Out (O) of the instrument.
connect to the printer to print the measuring data.
cover for the special lithium battery compartment DC connector -
dedicated power adapter connector.
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1.3
Power
The Colorimeter is powered by dedicated power adapter or special lithium batteries, the use
of other facilities for power supply may damage the Colorimeter.
Ensure that the Switch is on Out (O) before connecting to the power adapter or mounting the
battery.
1.3.1 Battery
1. First check and confirm if the Switch is on Out (O), then
following the arrow direction as shown on Figure 5, take out
the battery cover by pressing down.
Figure 5. Remove the battery cover
2. Mount the battery into the compartment as shown in
Figure 6, pay attention to the front and back of the battery.
Figure 6. Mounting the battery
3. Follow the directions on Figure 7, press up to mount the
battery into the compartment.
Figure 7. Mounting the battery cover
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1.3.2 Power Adapter
1. First check and confirm if the Switch is on Out (O),
2. Plug the input cable of the power adapter as shown on
Figure 8 into the DC connector.
Figure 8. Power Adapter connection
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II. Screen Description
2.1 Display layout
The screen of colorimeter is divided into four parts: the “Menu” on the left, the “Screen Column” on
the top, the “Window” in the middle and the “Message Column” at the bottom, as shown in Figure 9.
Screen
Window
Message
Menu
Figure 9 Display layout
2.2 Detailed interpretation of the screen
2.2.1 “Measurement” menu
Measurement conditions
Sample No.
Measurement data
Color displayed during
measurement
Button function
and message
System
ti
Power supply
Figure 10 Detailed interpretation of “Sample Measurement”
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Color
difference
evaluation standard
Specimen No.
Comparison between sample
color and sample color
Sample data
Color difference data
Description on color preference
Figure 11 Detailed interpretation of “Specimen Measurement” screen
2.2.2 “Record” menu
Measurement
conditions
Function selection
System time during the measurement
Figure 12 Detailed interpretation of “Sample Record” screen
Figure 13 Detailed interpretation of “Specimen Record” screen
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2.2.3 “Mode” menu
SCI/SCE setting
Setting of single measurement or mean
of several repeated measurements
Setting color difference
evaluation standard
Select the corresponding color space required for color description
Figure 14 Detailed interpretation of “Measurement Mode” screen
Select
the
required
standard light source for
measurement
Figure 15 Detailed interpretation of “Light Source Selection” screen
Select the required color
difference formula
Figure 16 Detailed interpretation of “Color Difference Formula” screen
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2.2.4 “Setting” menu
Manual black and
white calibration
Figure 17 Detailed Interpretation of “Black and White Calibration” screen
Selection of printing mode when
micro printer is connected
Selection of data saving mode during
equipment measurement
Figure 18 Detailed interpretation of “Printing and Saving” screen
Selecting the language of the equipment
The saved data will not be deleted
when the setting of the equipment is
restored to the default status.
Setting the time of
the equipment
Setting the time for the screen of
the equipment being on
Figure 19 Detailed interpretation of “System Setting” screen
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III. Operating Instructions
3.1 Startup
It is required to check whether the colorimeter is connected to external power supply or provided with
battery prior to startup, so as to verify that the equipment is provided with power supply. Then, start up the
equipment and the screen of the equipment will display the startup LOGO.
After the startup screen, the equipment will enter the self-test procedure to ensure the normal
operation of the equipment.
3.2 Color difference measurement
The color difference measurement by the equipment is completed through two steps, namely: “Sample
Measurement” and “Specimen Measurement”.
1. The standard color parameter of standard samples is obtained through sample measurement;
2. The parameter of the samples to be tested is obtained through specimen measurement and meanwhile the
color difference data between specimens and samples is obtained through calculation.
The menu can be shifted to “Measurement” when the “Menu” button
is pressed. Under the menu of
“Measurement”, there are two screens for sample measurement and specimen measurement, namely:
“Sample Measurement” and “Specimen Measurement”. Shift between the two screens can be realized by
pressing the “Screen Shift Button”
.
3.2.1 Measurement: Sample measurement
As is shown in Figure 20, the sample measurement can be conducted in “Measurement: Sample
Measurement” screen to obtain the color parameter of standard samples. The color parameter measured will
be displayed on the measurement screen.
The upper right part of the screen displays the current test conditions, such as light source, observer
and light-emitting method.
The left part of the screen displays the current simulation color measured.
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Figure 20 Measurement: Sample measurement
3.2.2 Measurement: Sample measurement
To measure the color difference between the specimen and the sample after sample measurement, it is
advised to press the “Screen Shift Button”
to shift the screen to “Measurement: Specimen
Measurement” screen. As is shown in Figure 21, the color difference measured will be displayed in
measurement screen.
Figure 21 Measurement: Specimen measurement
Meanwhile, the right part of the screen displays the simulation colors of the sample and the specimen
for visualized color difference analysis.
3.3 Record
The menu can be shifted to “Record” by pressing the “Menu” button
. There are two screens
under the menu of “Record” for viewing the recorded sample data and specimen data, namely: “Sample
Record” and “Specimen Record”. Shift between the two screens can be realized by pressing the “Screen
Shift Button”
.
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3.3.1 Record: Sample record
The menu can be shifted to “Record” by pressing the “Menu” button
. As is shown in Figure 22,
through the screen, the records on saving of samples can be viewed and the options of the dropdown menu
can be selected according to needs through “OK button”
, “UP button”
and “DOWN button”
.
The dropdown menu can perform the following functions:
Sample record: Shift the screen to “Sample Record” screen;
Yellowness index record: Shift the screen to the screen of yellowness index and whiteness index;
Sample retrieval: Retrieve the current sample record to the “Measurement: Sample Record” screen
and measure the specimens of this sample;
Sample deletion: delete the current samples and specimens;
Sample clearance: Delete all the samples and specimens without influencing the data concerning
yellowness index and whiteness index;
Figure 22 Record: Sample Record
3.3.2 Record: Specimen Record
After having selected the sample to be viewed, press the “Screen Shift Button”
and the screen
will shift to “Sample Record” screen and the screen will be shifted to sample record screen for this sample.
As is shown in figure 23, select the sample record through “OK button”
button”
, “UP button”
and “DOWN
afterwards and you can view the color difference record of different specimens.
The dropdown menu performs the following functions:
Specimen record: Shift the screen to “Specimen Record” screen;
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Yellowness index record: shift the screen to the screen for viewing yellowness index and whiteness
index;
Sample retrieval: retrieve the current specimen record to the “Measurement: Sample Record” screen
as samples and measure the specimens of this sample;
Specimen deletion: when this function is selected, the colorimeter will pop up the message box with
two options “Delete all the specimens of current sample” and “Delete the specimens of
all samples” for the user to choose from;
Record clearance: Delete all the samples and specimens without influencing the data concerning
yellowness index and whiteness index;
Figure 23 Record: Specimen record
3.4 Mode
The menu can be shifted to “Mode” by pressing the “Menu” button
. There are three screens under
the menu of “Mode” for measurement setting. The three screens are namely “Measurement Mode”, “Light
Source Selection” and “Color Difference Formula”. Shift between the three screens can be realized by
pressing the “Screen Shift Button”
.
3.4.1 Mode: Measurement mode
When the screen is shifted to “Measurement Mode” screen as is shown in Figure 24, the color space
during equipment measurement (CIE1976LAB, CIEXYZ, CIELUV, HunterLAB, sRGB, yellowness index
and whiteness index), light-emitting method, setting of average measurement times and setting of tolerance
of the equipment can be selected under the “Measurement Mode”.
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Figure 24 Mode: Measurement mode
Color space
CIE1976LAB: This color space is the universal uniform color space recommended by the International
Commission of Illumination (CIE) for the world. CIE1976LAB uniform color space is obtained through the
non-linear transform of CIEXYZ color space. The advantage of the color space is that the psychological
effect of object color is better reflected when the color difference is greater than the recognition threshold
(just noticed) and less than the color difference between two adjacent levels in the Munsell Color System.
Since the CIE1976LAB color space is introduced, it is widely applied in the industry. Especially in the
color quality control of products in such industries as dyes manufacturing, coating, textile printing, oil ink
and plastic coloring, etc., it holds important position;
CIEXYZ: The color space is a kind of device-independent color space. The space model attempts to
describe the color sensation of a person with normal color visual sense towards precisely defined color
stimulation under precisely defined observation environment through the mathematical method. The values
X, Y and Z are the so-called tristimulus values;
CIELUV: The International Commission of Illumination proposed a new chromaticity diagram by
contracting the green area and expanding the blue area on the basis of the CIE1931 chromaticity diagram in
1960. After several modifications, it finally becomes the CIE1976LUV. It overcomes the defects of the
1931CIE-RGB color system and becomes the comparatively sophisticated color system. CIELUV is mainly
applied to cases when the color difference is minor. This color space is often used in processing light source
color and additive color mixing in such industries as color TV industry, etc.;
HunterLAB: Hunter proposed this color space and the corresponding color difference formula in 1948 and
applied it in ceramics, plastics and textiles for several times. At present, 75% of food companies all across
the world use this color space and color difference formula to test foods;
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sRGB: sRGB color space is a kind of light mode based on color light. It is applied use in our daily life, for
example: TV, computer display, scanner, etc. Images requires scanning in printing. Thus, scanner firstly
takes the RGB color light message of the script image during the scanning. sRGB is a kind of additive color
mixing mode. It describes a color through the values of R, G and B. The definable color of computer is the
16.7 million kinds of color combined based on the components R, G and B (ranging from 0~255). 0
represents no stimulation, 255 represents the maximum stimulation. In the case when all of R, G and B is
255, it will be white color. In the case when all of R, G and B is 0, it will be black color. This color space
can be used to predict the color when the object color is entered into the display.
Yellowness index and whiteness index: The colorimeter can be used to measure yellowness index, Ganz
whiteness index and ISO lightness.
Light-emitting method
Light-emitting method SCI refers to that the mirror reflected light in object reflected light is included
during the measurement.
Light-emitting method SCE refers to that the mirror reflected light in object reflected light is not
included during the measurement
Average measurement
The user can use the function of average measurement when he/she needs to measure several points
and take the mean of them.
Tolerance setting
Intended for setting the standard for evaluating whether the color difference measured is qualified
3.4.2 Mode: Light source selection
When the screen is shifted to “Light Source Selection” screen as is shown in Figure 25, the light
source (A, C, D50, D65, F2, F7, F11 and F12) for the measurement by the equipment can be selected from
“Light Source Selection” to satisfy with the different measurement requirements.
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Figure 25 Mode: Light Source selection
Light
Color
source temperature
A
2854K
Standard
illumination
Environment
Application
Tungsten filament lamp The light perpendicular to the Common indoor lamps, it can be used
light during sunrise or sunset for discoloration detection.
and the indoor tungsten filament
lamp.
C
D50
6700K
5000K
6700K quartz halogen Daylight
Fluorescent lamp commonly used before
lamp
1964
5000K
quartz halogen A
lamp
kind
of
warm
daylight It is applied to the printing industry for
reflected on printed materials observing the transparency of printed
and photos
D65
6500K
6500K
quartz halogen Average sunshine
lamp
materials and the color
As the most widely applied light source,
it is not provided with precise D65
artificial light source at present. It is also
be assessed as fluorescent light and light
degree.
F2
4200K
Cool white fluorescent Common lamps in offices and Intended for the inspection of ordinary
lamp (CWF)
F7
6500K
factories
Board-band fluorescent Blue light and cold sun light
objects.
Widely used in offices and factories.
lamp (D65)
F11
4000K
fluorescent
example:
TLD84
F12
3000K
A kind of cool white light Standard light source designated by
Narrow-band
lamp,
TL84
for characterized by low energy European clothing industry
and consumption and excellent color
rending property
Fluorescent lamp, for A kind of warm white light It is the standard light source designated
example: Westinghouse characterized by low energy by Seais Corporation of USA.
and Philips (TL84/U30) consumption and excellent color
rendering property.
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3.4.3 Mode: Color difference formula
When the screen is shifted to “Color Difference Formula” screen as is shown in Figure 26, the color
difference formula (ΔELab, ΔECMC, ΔEISO, ΔECIE94, ΔEFCM⒒, ΔELUV, ΔEHunter and ΔEsRGB) for the
calculation of color difference for the measurement by the equipment can be selected in “Color Difference
Formula” screen, so as to satisfy with the different measurement requirements.
Figure 26 Mode: Color difference formula
Color difference formula
ΔELab: In the past, the different color different formulas brought about great inconvenience to the actual
application in the industry, for the transform between the data based on different color difference formulas
is difficult or impossible and there is no mutual comparison between the results calculated in accordance
with different color difference formulas. To change the chaotic situation and standardize the color
difference evaluation standard, the International Commission of Illumination (CIE) formally recommended
the CIE1976LAB uniform color space and the corresponding color difference formula, which standardized
the application of color difference formulas;
ΔECMC: CMC color difference formula is obtained after the modification of CIE1976LAB color difference
formula. It greatly improves the even degree of the color difference and makes the uniform application of
color difference tolerance for all the color areas in actual industrial application become possible. The
evaluation of color difference approaches that by naked eyes. Therefore, at present, the CMC color quality
evaluation standard is already widely applied to industry.
ΔEISO: ISO color difference formula is the formula adopted for equipment-based evaluation of color
fastness of dyed textiles by based on ISO standard. ISO color difference formula is the color difference
calculation formula adopted for evaluating color fastness of dyed textiles by equipment in the national
standards of China. It is the color difference formula established after the weighed processing of lightness
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difference, saturation difference and hue difference based on CIE1976LAB color difference formula;
ΔECIE94: In 1991, R S Berns and his partners published new research findings. The color difference
formula adopted therein became the tentative suggestion of the commission of new technology. Finally, the
International Commission of Illumination (CIE) published a CIE technical report in 1995, announcing color
difference model with the full name being “CIE 1994(ΔL* ΔC*ab ΔH*ab)”.
ΔEFCM⒒: It can be directly used in color difference evaluation without requiring the transform between
other color systems. It is widely applied to such industries as textile printing, etc.;
ΔELUV: It is mainly used in the conditions when the color difference is slight. This color difference formula
is usually used when processing light source color and additive color mixing in such industries as color TV
industry, etc.;
ΔEHunter: Hunter proposed the color space and the corresponding color difference formula in 1948. It is
often used in ceramics, plastics and textiles, etc. At present, 75% of food companies all across the world
use this space and color difference formula to test the foods;
ΔEsRGB: It is used to predict the color difference after object color is entered into the display.
3.5 Setting
The menu can be shifted to “Setting” by pressing the “Menu” button
. There are three screens
under the menu of “Setting” for measurement setting. The three screens are namely “Black and White
Calibration”, “Print Selection” and “System Setting”. Shift between the three screens can be realized by
pressing the “Screen Shift button”
.
3.5.1 Setting: Black and white calibration
The equipment is provided with startup automatic black and white board calibration and manual black
and white board calibration and the user can choose the calibration method by themselves.
Figure 27 Setting: Black and white calibration
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3.5.2 Setting: Printing and saving
As is shown in Figure 28, the printing method and the method for saving the measurement data can be
set on the “Printing and Saving” screen;
Figure 28 Setting: Printing and saving
Printing
Automatic printing: when this option is selected and the colorimeter is connected to micro printer, the
micro printer will print the measurement data out automatically each time the colorimeter performs the
measurement;
Manual printing: When this option is selected and the colorimeter is connected to micro printer, the
micro printer will print the measurement data out by manually pressing the button
each time the
colorimeter performs the measurement;
Saving
Automatic saving: When this option is selected, the data of each measurement by the colorimeter will
be saved automatically;
Manual saving: When this option is selected, the measurement data will be saved when the button
is manually pressed after each measurement by the colorimeter;
3.5.3 Setting: System setting
As is shown in Figure 29, the system time, screen backlight time and system language can be set and
selected in the “System Setting” screen;
The “Restore to default setting” available on this screen is intended for restore all the settings of the
equipment to default status without deleting the data already saved in the equipment.
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Figure 29 Setting: System setting
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Ⅳ.Product standard
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WF30 User Manual
Shenzhen Wave Optoelectronics Technology Co., Ltd.
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